Microsorum pteropus 'Narrow' (Narrow Java Fern)

27 October 2026

150

Microsorum pteropus 'Narrow' is a narrow-leaved aquarium form of Java fern, supplied here as a Tropica InVitro plant. It forms tough green fronds from a creeping rhizome and is well suited to attachment on wood or rock. The trade name supports identification, but the precise cultivar lineage cannot be independently verified from the supplied material. It is a slow-growing, undemanding fern that tolerates modest lighting and does not require carbon dioxide supplementation.

Microsorum pteropus 'Narrow' (Narrow Java Fern)

Identification

The supplied label identifies the plant as Microsorum pteropus 'Narrow'. Its strap-like, relatively narrow fronds and creeping rhizome are consistent with a narrow Java fern form. The exact cultivar status and lineage should be treated as a trade identification rather than independently confirmed taxonomy.

Placement and planting

Attach the rhizome to driftwood, rock, or another hard surface with thread or a suitable aquarium-safe adhesive. Keep the rhizome above the substrate; burying it can cause decay. After attachment, roots usually secure the plant as it grows. It works well as a supporting or midground plant, with mature fronds adding vertical texture.

Light and water conditions

Use low to moderate aquarium lighting and provide gentle to moderate circulation around the leaves. Stable, clean water is more important than intense lighting. The plant generally grows without added carbon dioxide, although supplementation may improve growth when light and nutrients are also balanced. Avoid abrupt changes and remove decaying leaves promptly.

Establishment from InVitro culture

Rinse the culture gel from the plant before placing it in the aquarium. Separate the mass into several small portions, taking care not to bury their rhizomes. Expect an adjustment period as emersed-grown tissue changes to submerged growth; older leaves may deteriorate while new aquatic leaves develop.

Propagation and maintenance

Propagation is usually by dividing the rhizome or separating daughter plantlets that develop on mature leaves. Remove damaged or excessively old fronds at their base with clean scissors. Because growth is slow, pruning should be conservative. Algae can be reduced by keeping light appropriate and maintaining regular nutrient and water-quality management.

Plant info

Colors: Green, Dark green, Light green
Difficulty: Easy
Origin: Cultivar
Usage: On rock or root
Type: Rhizome fern
Growth rate: Slow
Height: 10–20 cm
Light demand: Low
CO2: Low

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